Understanding 2D Lists in Python

Which of the following best describes a 2D list in Python?

• A list with two elements

• A list that contains only numbers

• A list of lists, where each element is another list

• A list with two dimensions, width and height

How can you access an element in a 2D list at row 2 and column 3?

• list[2][3]

• list[3][2]

• list[1][2]

• List[2,3]

What does None represent in a 2D list in Python?

• An empty list

• A missing value

• A zero value

• A special character

Which of the following is the correct way to assign the same value to multiple variables in a single statement?

• x = 10; y = 10; z = 10

• x, y, z = [10, 10, 10]

• x, y, z = 10

• x, y, z = "10"

How can you iterate over a single row of a 2D list in Python?

• Using a for loop with range(len(list))

• Using a while loop with a counter variable

• Using a for loop with range(len(list[0]))

• Using a for loop with range(len(list[1]))